Question
Which catalyst is used for the synthesis of H₂ SO₄
by Lead-Chamber process?Solution
Lead-chamber Process is the method of producing sulfuric acid by oxidizing sulfur dioxide with moist air, using gaseous nitrogen oxides as catalysts, the reaction taking place primarily in a series of large, boxlike chambers of sheet lead.
- A sum was put at simple interest. The amount after 4 years became (96/80) times the amount it had become in 2 years. What is the annual rate of interest?
Ashakti invested the same amount of money in two distinct Systematic Investment Plans (SIPs), SIP 'X' and SIP 'Y,' both for a duration of 2 years. SIP '...
R' invested some money at a compound interest rate of 40% p.a., compounded quarterly. If after 9 months, he received an amount of Rs. 1,99,650, then the...
A man deposited Rs. ‘x + 850’ at 12% per annum simple interest and earned Rs. 552 as interest after 2 years. Find the interest earned by him if he d...
A certain sum of money becomes 5 times of itself in 20 years at simple interest. In how many years does it become double of itself at the same rate of s...
Arjun borrowed Rs. 5000 at R% S.I. and Rs. 6000 at (R + 5)% S.I. for 2 years. The total interest paid was Rs. 2800. Find the rate at which he borrowed R...
Akshay invested Rs. 960 in two schemes P and Q in the respective ratio of 5:3. Scheme P and Q are offering simple interest at the rate of 7% per annum a...
Sohan invested Rs. P in Scheme X at 20% per annum under simple interest for 3 years and Rs. Q in Scheme Y at 12% per annum under compound interest for 2...
Anjali invested Rs.9000 in a scheme offering compound interest of x% p.a. compounded annually. If at the end of 2 years, interest received by her from t...
An amount was invested at simple interest for 2 years. If the rate had been 8% higher, the interest would have increased by Rs. 320. What is the princip...
Relevant for Exams:
